The standard result in patent policy, as demonstrated by Gilbert and Shapiro (1990), is that infinitely lived but very … narrow patents are optimal as deadweight losses are minimized and spread through time, but inventors can still recover their … that a finitely lived, but broader, patent is socially desirable. This is because a patent breadth is a better instrument …

-- Geoadditive Modeling of Diverging Allocations -- Innovative Activity over Space and Time -- Spatiotemporal Modeling of Innovation … innovation economics. On the geographical level of administrative districts innovation and its theory-based determining factors … Space and Time – Spatiotemporal Modeling of Innovation Promoting Factors Target Groups Scientists and students of economic …

because it expires or because a noninfringing innovation displaces its product in the market. We define the length of time …In active investment climates where firms sequentially improve each other's products, a patent can terminate either … until one of these happens as the effective patent life, and show how it depends on patent breadth. We distinguish "lagging …